Explanation

40% = 0.4 (or 40 out of 100), which is much less than 400.

Explanation

4 × 5 - 5 = 15.

First, multiply 4 by 5 to get 20, then subtract 5 to get 15.

Explanation

17 is the only number if we add 2 to make 19

multiply by 2 to make 34

Explanation

(4+3) × (8-2) = ?

= 7 x 6 

= 42

Explanation

1014cm² is the corr

area of cube =6a^2 =6*(13)^2 =1014cm2

Explanation

The numbers between 20 and 30 are: 21, 22, 23, 24, 25, 26, 27, 28, 29.

Let's check each number to see if it is prime:

- 21 is not prime (divisible by 3 and 7).

- 22 is not prime (divisible by 2 and 11).

- 23 is prime (not divisible by any number other than 1 and 23).

- 24 is not prime (divisible by 2, 3, 4, 6, 8, and 12).

- 25 is not prime (divisible by 5).

- 26 is not prime (divisible by 2 and 13).

- 27 is not prime (divisible by 3 and 9).

- 28 is not prime (divisible by 2, 4, 7, and 14).

- 29 is prime (not divisible by any number other than 1 and 29).

The prime numbers between 20 and 30 are 23 and 29.

Now, we sum these prime numbers:

 23 + 29 = 52

Explanation

Distributive law, in mathematics, the law relating the operations of multiplication and addition, stated symbolically, a(b + c) = ab + ac; that is, the monomial factor a is distributed, or separately applied, to each term of the binomial factor b + c, resulting in the product ab + ac.

Explanation

Pi is an irrational number-

you can't write it down as a non-infinite decimal

In decimal form, the value of pi is approximately 3.14.

But pi is an irrational number, meaning that its decimal form neither ends (like 1/4 = 0.25)

nor becomes repetitive (like 1/6 = 0.166666...).

(To only 18 decimal places, pi is 3.141592653589793238.)

ND5-07-2023

Explanation

The prime numbers less than 50 are:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.

Their number is a total of 15 prime number which is less than 50

Explanation

Let x= the number

So according to the given conditions,

3 ( 2x + 9) = 75

6x + 27 = 75

6x = 75 − 27

6x = 48

x = 48/6

​x = 8